YOU SAID:
hey man i just came for the cake
INTO JAPANESE
ちょっとケーキ買いに来ただけだよ
BACK INTO ENGLISH
I just came by to buy some cake.
INTO JAPANESE
ちょうどケーキを買いに来たところです。
BACK INTO ENGLISH
I just came to buy a cake.
INTO JAPANESE
私はケーキを買いに来たばかりです。
BACK INTO ENGLISH
I have just come to buy a cake.
INTO JAPANESE
私は今ケーキを買いに来たところです。
BACK INTO ENGLISH
I have just come to buy a cake.
Well done, yes, well done!